Supporters of Mousavi and Karroubi gathered in parts of the Iranian capital and asked for permission to hold a rally “in support of the people in Tunisia and Egypt”. But officials refused to give permission and declared all such rallies illegal.

The government has said no more demonstrations were needed as the Iranian people have already expressed their solidarity with the Egyptians and Tunisians on the sidelines of rallies marking the 32nd anniversary of the victory of the Islamic Revolution Feb 11.

According to Xinhua, Iranian security forces fired teargas shells to disperse protesters who had gathered at a Tehran square in support of demonstrations in Egypt and Tunisia.

Clashes were reported to have taken place at the Enghelab Square in Tehran between security forces and protesters.

People in separate groups, silently and without chanting slogans, moved towards the Azadi Square, but security forces chased them away.

Gatherings were also reported from Imam Khomeini Square, Haft-e-Tir Square and on Karim Khan and Vali-e-Asr streets.

Authorities have also blocked websites and satellite news channels in an effort to disrupt communications that could help organise protests.